/* BEAT website: Polish landing page and guides (light reading layout, dark product hero). */
:root{--bg:#FFFFFF;--paper:#F5F5F3;--ink:#0A0F14;--ink-2:#3A424B;--muted:#6B7480;--line:#E3E5E7;--accent:#00E5AB;--accent-ink:#00876A;--dark:#07090B;--sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif;--mono:"IBM Plex Mono",ui-monospace,Menlo,monospace;--gutter:clamp(16px,4vw,48px)}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:80px}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 var(--sans);-webkit-font-smoothing:antialiased}
a{color:var(--accent-ink)}
img{max-width:100%;height:auto}
:focus-visible{outline:2px solid var(--accent-ink);outline-offset:3px;border-radius:4px}

/* header */
.top{position:sticky;top:0;z-index:20;background:rgba(7,9,11,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.top-in{max-width:1180px;margin:0 auto;padding:0 var(--gutter);height:64px;display:flex;align-items:center;gap:28px}
.top img{width:104px;display:block}
.top nav{display:flex;gap:24px;margin-left:auto;font-size:14px}
.top nav a{color:#C2C9CF;text-decoration:none}
.top nav a:hover,.top nav a[aria-current="page"]{color:#fff}
.top .lang{color:#8A949E;font:500 12px var(--mono);letter-spacing:.1em;text-decoration:none;border:1px solid #2A333C;border-radius:99px;padding:4px 10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:999px;font-weight:600;font-size:16px;text-decoration:none;white-space:nowrap;border:1px solid transparent}
.btn-accent{background:var(--accent);color:var(--dark)}
.btn-accent:hover{background:#3BFFC4}
.btn-ghost{color:#fff;border-color:rgba(255,255,255,.25)}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
@media (max-width:820px){.top nav a:not(.lang){display:none}.top nav{gap:12px}}

/* dark product hero (landing) */
.pl-hero{background:var(--dark);color:#fff;text-align:center;padding:clamp(72px,11vw,140px) var(--gutter) 0;overflow:hidden}
.pl-tag{display:inline-flex;align-items:center;gap:10px;margin:0 0 24px;font:500 12px var(--mono);letter-spacing:.18em;text-transform:uppercase;color:#8A949E}
.pl-tag i{width:8px;height:8px;border-radius:50%;background:var(--accent)}
.pl-hero h1{margin:0 auto;max-width:15ch;font-weight:700;font-size:clamp(40px,6.4vw,96px);line-height:1;letter-spacing:-.05em}
.pl-hero h1 em{font-style:normal;color:var(--accent)}
.pl-hero .sub{max-width:44ch;margin:24px auto 32px;font-size:clamp(17px,1.6vw,21px);line-height:1.45;color:#9AA4AE}
.pl-hero .cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.pl-hero .note{margin:16px 0 0;font:500 12px var(--mono);color:#5E6873}
.pl-device{max-width:1180px;margin:clamp(48px,7vw,88px) auto 0;border-radius:16px 16px 0 0;overflow:hidden;border:1px solid #262F39;border-bottom:0;background:#0B1016;box-shadow:0 -30px 140px -60px rgba(0,229,171,.2)}
.pl-device .bar{height:36px;display:flex;align-items:center;gap:8px;padding:0 14px;background:#12181F;border-bottom:1px solid #1C252E}
.pl-device .bar i{width:10px;height:10px;border-radius:50%;background:#2A343E}

/* reading layout */
main.read{max-width:780px;margin:0 auto;padding:clamp(56px,8vw,104px) var(--gutter) clamp(64px,9vw,120px)}
.crumbs{font-size:14px;color:var(--muted);margin:0 0 28px}
.crumbs a{color:var(--muted)}
.eyebrow{font:500 13px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin:0 0 16px}
h1{font-size:clamp(34px,5.4vw,56px);line-height:1.05;letter-spacing:-.04em;font-weight:700;margin:0 0 20px;text-wrap:balance}
h2{font-size:clamp(24px,2.8vw,32px);letter-spacing:-.025em;line-height:1.15;font-weight:650;margin:64px 0 14px;text-wrap:balance}
h3{font-size:19px;margin:32px 0 8px;font-weight:650}
p,li{color:var(--ink-2)}
.lede{font-size:clamp(19px,1.8vw,22px);line-height:1.5;color:var(--ink)}
.meta{color:var(--muted);font-size:14px;margin:0 0 40px}
ul,ol{padding-left:22px}
li{margin:8px 0}
.answer{background:var(--paper);border-left:3px solid var(--accent-ink);border-radius:0 12px 12px 0;padding:18px 22px;margin:28px 0}
.answer p{margin:0;color:var(--ink)}
.formula{font:500 clamp(16px,1.6vw,19px)/1.6 var(--mono);background:var(--dark);color:#E8ECEF;border-radius:12px;padding:20px 24px;margin:24px 0;overflow-x:auto}
.formula b{color:var(--accent);font-weight:500}
table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--muted);font-weight:500;font-size:14px}
.toc{border:1px solid var(--line);border-radius:12px;padding:18px 22px;margin:0 0 40px}
.toc b{display:block;margin-bottom:6px}
.toc ol{margin:0}
.faq details{border-bottom:1px solid var(--line);padding:16px 0}
.faq summary{cursor:pointer;font-weight:600;color:var(--ink);list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--muted)}
.faq details[open] summary::after{content:"–"}
.faq details p{margin:10px 0 0}
.cta-box{margin:72px 0 0;background:var(--dark);color:#fff;border-radius:20px;padding:clamp(28px,4vw,44px)}
.cta-box h2{margin:0 0 10px;color:#fff}
.cta-box p{color:#9AA4AE;margin:0 0 24px}
.related{margin-top:48px;padding-top:24px;border-top:1px solid var(--line)}
.related a{display:block;margin:6px 0}

/* landing sections */
.band{padding:clamp(72px,10vw,140px) var(--gutter)}
.band-in{max-width:1080px;margin:0 auto}
.band h2{margin-top:0;font-size:clamp(30px,4.2vw,52px);letter-spacing:-.04em;line-height:1.05;max-width:20ch}
.band .lede{max-width:52ch}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(20px,4vw,56px);margin-top:48px;counter-reset:s}
.steps div{counter-increment:s;border-top:1px solid var(--line);padding-top:20px}
.steps div::before{content:"0" counter(s);font:500 13px var(--mono);color:var(--accent-ink)}
.steps b{display:block;font-size:20px;letter-spacing:-.01em;margin:8px 0 6px;color:var(--ink)}
.steps p{margin:0}
.grey{background:var(--paper)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,5vw,72px);margin-top:40px}
.two p{margin:0}
.two b{color:var(--ink)}
@media (max-width:800px){.steps,.two{grid-template-columns:1fr}}

/* footer */
.foot{background:var(--dark);color:#8A949E;font-size:13px;padding:40px var(--gutter) calc(40px + env(safe-area-inset-bottom))}
.foot-in{max-width:1180px;margin:0 auto;display:flex;justify-content:space-between;gap:16px 32px;flex-wrap:wrap}
.foot a{color:#C2C9CF;text-decoration:none}
.foot nav{display:flex;gap:20px;flex-wrap:wrap}

/* Book a Demo: thank-you intro + request form */
.bd-intro{background:var(--dark);color:#fff;padding:clamp(64px,9vw,120px) var(--gutter) clamp(56px,7vw,96px)}
.bd-intro-in{max-width:1080px;margin:0 auto}
.bd-intro .eyebrow{color:#8A949E}
.bd-intro h1{color:#fff;max-width:18ch;font-size:clamp(38px,5.6vw,72px);line-height:1.02;letter-spacing:-.045em}
.bd-intro h1 em{font-style:normal;color:var(--accent)}
.bd-intro .lede{color:#9AA4AE;max-width:56ch;margin:0}
.bd{padding:clamp(56px,8vw,104px) var(--gutter) clamp(72px,10vw,128px)}
.bd-in{max-width:1080px;margin:0 auto;display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(32px,6vw,88px);align-items:start}
.bd-need{position:sticky;top:96px}
.bd-need h2{margin:0 0 8px;font-size:clamp(22px,2.4vw,28px)}
.bd-need>p{margin:0 0 20px;font-size:16px}
.bd-need dl{margin:0;border-top:1px solid var(--line)}
.bd-need dt{font-weight:600;color:var(--ink);font-size:16px;padding-top:14px}
.bd-need dd{margin:2px 0 0;padding-bottom:14px;border-bottom:1px solid var(--line);color:var(--muted);font-size:15px;line-height:1.5}
.bd-need .hint{margin:20px 0 0;font-size:15px;color:var(--muted)}
.bd-form fieldset{border:0;margin:0 0 40px;padding:0}
.bd-form legend{font:500 13px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin:0 0 18px;padding:0}
.bd-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px 20px}
.bd-grid .full{grid-column:1/-1}
.bd-form label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin:0 0 6px}
.bd-form label small{font-weight:400;color:var(--muted)}
.bd-form input[type=text],.bd-form input[type=email],.bd-form input[type=tel],.bd-form select,.bd-form textarea{width:100%;font:16px/1.4 var(--sans);color:var(--ink);background:#fff;border:1px solid #CDD2D6;border-radius:10px;padding:12px 14px;transition:border-color .15s}
.bd-form textarea{min-height:96px;resize:vertical}
.bd-form select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 52%,calc(100% - 15px) 52%;background-size:5px 5px;background-repeat:no-repeat;padding-right:40px}
.bd-form input:focus,.bd-form select:focus,.bd-form textarea:focus{outline:none;border-color:var(--ink)}
.bd-form [aria-invalid=true]{border-color:#C8372D}
.bd-help{font-size:13px;color:var(--muted);margin:6px 0 0;line-height:1.45}
.bd-chips{display:flex;flex-wrap:wrap;gap:8px}
.bd-chips label{margin:0;font-weight:500;font-size:14px;color:var(--ink-2);border:1px solid #CDD2D6;border-radius:99px;padding:8px 14px;cursor:pointer;user-select:none}
.bd-chips input{position:absolute;opacity:0;pointer-events:none}
.bd-chips label:has(input:checked){border-color:var(--ink);background:var(--ink);color:#fff}
.bd-chips label:has(input:focus-visible){outline:2px solid var(--accent-ink);outline-offset:2px}
.bd-consent{display:grid;grid-template-columns:22px 1fr;gap:12px;align-items:start;margin:0 0 16px;font-size:14px;line-height:1.55;color:var(--ink-2)}
.bd-consent input{width:20px;height:20px;margin:1px 0 0;accent-color:var(--ink)}
.bd-consent label{font-weight:400;font-size:14px;color:var(--ink-2);margin:0}
.bd-info{font-size:13px;line-height:1.6;color:var(--muted);background:var(--paper);border-radius:12px;padding:16px 18px;margin:20px 0 0}
.bd-info p{margin:0 0 8px;color:var(--muted)}
.bd-info p:last-child{margin:0}
.bd-send{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.bd-send .btn{height:54px;padding:0 32px;font-size:17px;cursor:pointer}
.bd-send .btn[disabled]{opacity:.6;cursor:progress}
.bd-req{font-size:13px;color:var(--muted)}
.bd-err{color:#C8372D;font-size:14px;margin:14px 0 0}
.bd-hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.bd-done{background:var(--dark);color:#fff;border-radius:20px;padding:clamp(28px,4vw,48px)}
.bd-done h2{color:#fff;margin:0 0 10px}
.bd-done p{color:#9AA4AE;margin:0 0 20px}
.bd-done ol{margin:0;padding-left:20px}
.bd-done li{color:#C2C9CF}
.bd-done a{color:var(--accent)}
@media (max-width:860px){.bd-in{grid-template-columns:1fr}.bd-need{position:static}.bd-grid{grid-template-columns:1fr}}
.bd-sub{font-size:13px;color:var(--muted);margin:8px 0 12px}